EOD Mets

Notes

**Note:** Peritoneal spread is common in appendiceal tumors and is coded as 30 if limited to the peritoneum. Peritoneal implants involving abdominopelvic organs, such as the serosa of the small or large bowel and the surface of the ovary, spleen, or liver, should be coded as 30, regardless of whether implants demonstrate infiltration of underlying tissue, manifested as invasion. Nonperitoneal metastasis, such pleuropulmonary involvement is rare and would be coded as 50.
Code Description SS2018 M
00 No distant metastasis Unknown if distant metastasis NONE
10 Intraperitoneal acellular mucin - WITHOUT peritoneal mucinous deposits containing tumor cells or UNKNOWN D
30 Intraperitoneal metastasis - WITH or WITHOUT peritoneal mucinous deposits containing tumor cells D
50 Distant metastasis other than peritoneum Distant lymph node(s) - Inferior mesenteric - Superior mesenteric - Distant lymph node(s), NOS Intraperitoneal spread plus distant lymph node(s) Non-peritoneal metastasis Carcinomatosis Distant metastasis WITH or WITHOUT distant lymph node(s) D
70 Distant metastasis, NOS D
99 Death Certificate Only U
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